From 20d75866ad3c06aeb6a4e2a77e0295ba987b2796 Mon Sep 17 00:00:00 2001
From: Nick Schouten <Nick.Schouten@mediahuis.be>
Date: Wed, 20 Nov 2024 16:10:10 +0100
Subject: [PATCH] apparently you want to still support 3.8  :o who does that.
 It is deprecated! :angry:

---
 papermill/iorw.py | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/papermill/iorw.py b/papermill/iorw.py
index 934f1b2e..7feeb0e7 100644
--- a/papermill/iorw.py
+++ b/papermill/iorw.py
@@ -177,9 +177,7 @@ def _get_auth_kwargs(cls):
     @classmethod
     def _get_read_kwargs(cls):
         kwargs = cls._get_auth_kwargs() or {'headers': {}}
-        kwargs['headers'] |= {
-            'Accept': os.environ.get('PAPERMILL_HTTP_ACCEPT_HEADER', 'application/json')
-        }
+        kwargs['headers']['Accept'] = os.environ.get('PAPERMILL_HTTP_ACCEPT_HEADER', 'application/json')
         return kwargs
 
     @classmethod